A coating for a CoCrMo substrate including a first layer located directly on the substrate and including Ta(CoCrMo)0.5-2.0, a second layer located directly on the first layer and including tantalum, a third layer located directly on the second layer and including tantalum carbide, and a fourth layer located directly on the third layer and including diamond-like carbon (DLC).一種用於CoCrMo基材之塗膜,其包括直接位於該基材上並包括Ta(CoCrMo)0.5-2.0的第一層、直接位於該第一層上並包括鉭的第二層、直接位於該第二層上並包括碳化鉭的第三層、及直接位於該第三層上並包括似鑽石碳(diamond-like carbon,DLC)的第四層。